An advanced state of fear or uneasiness about the future or a future event that leaves one with irritable bowel syndrom; beyond trepidation.
Bob: The regional manager wants me to put in for this promotion and sadly, I think I'm likely to get the job.
Sue: That's great news, right? You don't sound too pleased.
Bob: Well, the pay is much better but I'll have to manage a bunch of slackers that all hate me. I was so nervous about it today that I sharted
Sue: Bummer, it sounds like you are harboring some serious crapidation over the whole thing.